DE2019221A1 - Flat plug socket - Google Patents

Description

'.-BEHAGEN- 2 O 1 92 2 1

- fStsoianwalt '

MÖNCHEN 71 (Solln) '

jgaaz-Hals-Straße 21. -

ITeIeSm 796213

JMB 2695 Munich, April 15, 1970

rope .

AMP incorporated
Eisenhower Boulevard
Harrisburg , Penna., Y, St, A *

Flat plug socket

Priority » April 29, 1969; Italy} Ur. 16219A / 69

The invention relates to flat stud sockets and in particular on a flat plug socket to produce a detachable electrical connection with an elastic plug ^ r.

Many types of such tab receptacles are known, and one type commonly used has a receptacle portion which is channel-shaped in cross-section and which is integrally formed at one end with a conductor connecting portion. Jacks this- _"type are produced in large quantities in ele" used ktrisohen plants UIID aus.Gründen the economy it is necessary to reduce the cost of such connectors without as $ ■ their isiektrische and mechanical performance affected ^ wirdi It has been found That apparently "small differences in the design of different? · sockets are the reason for considerably different performance data. The most frequently used types can be divided into two distinctly .exuitable groups, both of which are formed from flat · sheet metal. The first The group has a socket part which is channel-shaped in cross section and has parallel sides which are rolled up at their free edges to form spring arms, the edges of the channel base opposite one another.

QjO 9 846/1 1 71: ^l

Bayrtache ^ VÄÄInÄank MünAen _? i0993 ORiGINALINSPECTED

AMP 2695-2-201S221

gen and with a complementary flat plug in the spring seat lies between the edges and the base. The second group also has a bushing which is channel-shaped in cross section parallel sides, however, the free edges of the sides are bent over so that they are generally parallel with the channel base get lost. In this second group, the base is slit generally longitudinally to form a central one Longitudinal spring, which is raised and engages on one side of the flat plug and the flat plug upwards against the bent over presses free edges of the channel sides.

In both groups, the width of the channel base must be slightly larger than the complementary flat connector, and the die cut out Flat sheet metal from which the bushing is formed must have a developed width which is at least as great as that Width of the channel base plus the width of each of the channel sides. To reduce the cost of bushings because of the high material costs various attempts have been made; it was cheaper and thinner material was used, and attempts were also made to cut the unwound area of the metal die cut which the bushing is molded to downsize.

It is an object of the present invention to provide a flat plug socket to create economically in terms of material consumption as well as in electrical and mechanical terms is effective.

A flat plug socket formed from a punched sheet metal with a socket part having a base and a pair of side parts and having a generally channel-shaped cross-section is characterized according to the invention in that the sides converge in the longitudinal direction of the channel and that each side of the base is formed adjacent with an elongated opening which has a slit closed at its ends limited and extends in the longitudinal direction over part of the length of the sides, so that a Flaohsteoker between the diverging ends of the sides can be introduced and

009846/1171

ORIGINAL INSPECTED

AMP 2695 -V 201S221

into the slots between the base and those removed from the base lying sides of the slots can occur.

Generally the front end of a tab is related diluted to its strength, and thereby the initial attack of the blade terminal between the badis of the Socket and the opposite sides of the slots made easier. Another insertion of the blade terminal causes a resilient bending of the channel so that the tab is tensioned against the base of the socket. Preferably run the sides of the channel converge in an arched manner and are convex towards one another. Suitably the run Slots in the sides laterally into the base, and the domed converging sides overlie hand portions of the base, which is generally triangular in shape.

The base of the socket may be shaped to act as a spring, and for this purpose it is longitudinally convex against domed the sides of the slots remote from the base or a portion of the base raised with respect to it adjacent parts on the channel sides. In addition, the base part can be curved laterally between the slots. at In one embodiment, a part of the base which lies midway between the diverging ends of the channel sides is between the channel sides increased, via base parts that are adjacent to and with the diverging ends of the channel sides these are integral. A similar configuration can be provided between, however, the converging ends of the sides preferably the base part between the slots is with respect to the base part between the converging ends of the Pages increased. The two base parts are on the front and Rear sides of a step arranged, which extends in front of the rear .Ends of the slots laterally with respect to the channel.

The ends or corners of the slots are expedient

0098Λ6 / 117 1

ORIGINAL INSPECTED

amp 2695 -> ¥ - 201S221

concavely rounded, and the corners remote from the base are expediently curved and concave away from the base left out.

In a preferred embodiment, portions of the sides extend at their diverging ends and generally in front of the slots parallel to the formation of a parallel side-owning entrance section, which is introduced at the edges of an Attack the flat connector and guide the flat connector into the slots. The parallel-sided entrance section also serves to stabilize the socket provided with a flat plug against to and fro movement in the plane of the blade terminal. When the tab is fully inserted, the front end of the tab engages the rear Ends of the slots, which act as a stop against further insertion and serve to stabilize the with to improve a socket provided with a plug.

In a practical embodiment the bushing is integral with a one at the converging ends of the sides U-shaped ferrule having conductor connection section formed A transition section located between the ferrule and the bushing is also U-shaped or channel-shaped and has a lower height than the socket sides, so that U-shaped recesses between the socket sides and the ferrule tabs are formed and the socket has a continuous channel shape from one end to the other.

Further features and expediencies of the invention will be described below with reference to the drawings based on FIG Embodiments described. Clay to show the figures:

Figure 1 is a perspective view from the front, with an electrical flat connector that attached to an insulated lead wire is shown;

Figure 2 is a side plan view of the socket of Figure prior to attachment to the lead wire?

"009846/1171

- * ■

Figure 3 is a longitudinally sectioned elevation of the socket of Figure 2;

Figure 4 is a front end view of the socket of Figures 2 and 3 viewed from the right end thereof Characters;

Figure 5 is a plan view of the socket part of the socket from Figure 1 to 4; . ·

FIG. 6 shows a plan view of a flat sheet metal die cut to form the connector socket of Figures 1 to 5;

FIG. 7 shows a representation similar to FIG. 5, wherein

however, an inserted tab is shown in dash-dotted lines; and

Figures a side plan view or a perspective 8 and 9 vische representation from above, viewed from

the front of a modified embodiment of a flat plug socket, wherein in Figure 9 part of the socket is cut away.

The electrical Terbinderbuchse shown in Figure 1 is connected to an insulated lead wire 1 with a conductive core 2 by means of a press-on, having a Leite peripheral rear ferrule 3 and an insulating retaining ferrule 4 _β, the insulation retaining clamp 4 is pressed to the insulation of the conductor around, and the ferrule 3 is pressed against a stripped end of the conductor core 2, the clamps 3 and 4 being formed in one piece with a socket part 5 from a flat bleeh punched part shown in FIG. As FIG. 4 shows, the socket part 5 is channel-shaped in cross-section and has a base 6 and upright upwardly extending sides 7 which converge towards the rear end of the socket adjacent to the conductor clamp 3, as FIGS. 1 and 4 show. The sides 7 are formed with elongated openings which form longitudinal slots 8 adjacent to the base 6, which (Figures 5 to 7) is generally triangular. Parts of the sides 7 on the sides of the slots 8 that are remote from the base 6 are convexly curved towards one another (FIGS. 5 and 7). Rear parts 9 of the sides 7 run generally parallel in the direction of the .Leiterandrückzwinge 3, and side parts in front of the slots 8 also run generally parallel

009 8 46/1171

AIiP 2695 - 6 - 201S221

and delimit an inlet opening having parallel sides in the socket part 5

As best seen in Figure 6, corners are 'ler slots ü concavely rounded, and the side remote from the base 6 corners ¹ 11 are recessed arched away from the basis, - the rest, the slots S have generally the shape of a Parallelogram, as Figure 8 shows, but expediently the sides of the slots 8 remote from the base 6 converge by a slightly larger amount than the sides of the slots 8 adjacent to the base 6, and parts of the sides 7 extend longitudinally to the slots 8 and adjacent thereto, the slots 8, as FIG. 6 shows, being of essentially the same width over the entire length between the recessed corners 11.

As FIG. 4 shows, the clamps 3 and 4 are generally U-shaped before being pressed against the lead wire (FIG. 1), the insulation holding clamp 4 has a pair of tabs of greater height and span than the tabs of the conductor pressure clamp 3 ° The clamps 3 and 4 are short U-shaped or channel-shaped Section of less height than that of the ferrule parts 3 and 4 held at a distance, and the lobes of the ferrule are higher than the sides 7 of the socket, as Figure 3 shows. The ferrule 3 is from the sides 7 of the socket through in the longitudinal direction a short transition section of U or channel shape separated, the height of which is less than that of the sides 7, and in this way the connector socket is over its whole Length generally channel-shaped.

As FIG. 6 shows, the flat punched sheet metal from which the Yerbinder socket is formed has the tabs of the insulation retaining clamp 4 is a maximum dimension with respect to the width of the yerbinder socket, i.e. transverse to the direction of the wire insertion in the clamps 3 and 4 and to the insertion direction of the blade terminal, and then the connector socket can be made from a strip be punched out of metal belch, which is one of the unwound Width of the insulation clamp 4 equal dinimal

009846/1171 _BAD

2695 - 7 - 2018 221

width has. An opening 12 is punched in the ferrule base and serves as a guide hole for feeding and stepping Continuing the metal strip from which the connectors are formed and for feeding the connectors in Striped Fern :. As FIG. 6 shows, the diecuts face one another aligned support sections 13 »14, which serve to successive connector sockets one from a continuous To connect metal strips shaped socket strip and to keep them at a distance from each other. The carrier strip sections 13 and 14 are cut off as individual connectors are severed from the strip and pressed onto conductors as is customary in practice.

The flat die-cut shown in Figure 6 is formed into the connector sockets shown in Figures 1 to 5 by suitable price steps in a step-by-step press which bends the channel sides 7 upwards and the base 6 of the socket in aer in Figures 3 and 4 forms the shape shown. The ir.ittlere Al cut 15 of the base 6 at the front end between the diverging ends of the sides 7 is increased by the fact that the section 16 of the die cut at the front ends of the slots 6 is convex towards cbei. is widened. In addition, the middle section 15 of the raised base 6 is convexly curved upward in the transverse direction of the socket, with a large radius of curvature, as FIG. 4 shows. As Figure 3 shows, the raised i base 6 is adjacent to the rear ends of the slots 8 and inclined in front of these at 27 obliquely back and down and then runs between the rear parts 9 of the sides 7 to form a transverse step 17 of step 17, the base runs into the base of the U-shaped clamp parts 3 and 4. The transverse curvature of the front part 15 of the base 6 runs in the longitudinal direction backwards as far as the step 17. The pressing _or forming process determines the distance 18 (Fig 3) between the raised base 6 and opposite sides of the slots 8, where this free space is important for creating an appropriately measured contact pressure on an inserted flat plug 3t behind the side sections 10 and in the middle of them Porridge - "** 1; As a measure, the base 6 is provided with an elevation 19 which extends upwards between the sides 7, each in

BATH

AIVIP 2695 - 8 - 2018 221

is small in size with respect to the free tree 18. The increase 19 is designed to engage in a complementary recess in a flat plug.

In use, as shown in FIG. The front end of the flat connector enters first at the front ends of the slots at the recesses 11, which facilitate the insertion of the flat connector by providing an initial gap of greater height than that of the gap 18. The further insertion of the blade terminal into narrower parts of the slots 8 is facilitated by a uniform back course of the bulge 21 on the rear side of the front recesses 11, where they run into the upper sides of the slots 8. When the flat plug is pushed further into the narrower gap 38, the socket is tensioned resiliently and expands the gap 18 so that the flat plug is received therein. The base 6 of the socket shows a tendency to flatten towards the underside of the blade terminal 20 and presses the blade terminal 20 upwards against the opposite sides of the slots 8.

After the front end of the blade terminal has been fully inserted 20 act the rear ends of the slots 8 as a stop and also contribute to the socket 5 against a relative Stabilize pivoting in the plane of the blade terminal.

In the modified embodiment of the flat plug socket according to Figures 8 and _9f in which the same reference numerals are used for those parts that are the same as those in Figures 1 to 7, the base 6 of the socket is at its rear end in the area of the step 17 through a longitudinal indentation 23 stiffened. The indentation 23 has a generally triangular shape,

009846/1171

as can be seen from above in FIG. 9, and shows in direction on the front end of the socket. The sides of the triangular Indentations diverge rearward between the rear parts 9 of the sides 7, and the indentation extends forward and behind the step 17, as can be seen in Figure 8, «The ' The depth of the indentation increases towards the rear, and the indentation protrudes from the base 6 downwards.

The - . . .

/ Lateral parts 10 lying in front of the slots 8 are formed at their front ends with ears 24, which are thus pressed inwards are that they are normal to each other with respect to the side parts 10 and above the side parts 16 of the front end the Bsßis 6 extend. The undersides 25 of the ears 24 lie above the base 6 by a distance which is slightly larger than the free seam 18 between the base and the tops the slots 8. The ears 24 delimit an input section, which serves to connect a complementary flat plug, e.g. the tab 20 of Figure 7, is easier to insert into the slots 8 by ensuring that the flat plug is inserted into the socket in abutment with the base 6.

Claims t

0 9 8 4 6/1171

Claims (8)

2695 -> r- 201S221 Patent claims 1, JkXkB a punched sheet metal formed flat plug socket with ^ ■ "Binem a base and a pair of side parts having a socket part of generally channel-shaped cross-section, characterized in that the sides (7) converge in the longitudinal direction of the channel and that each side (7) adjacent to the base (6) with an elongated opening (β) is formed which delimits a slot closed at its ends and extends in the longitudinal direction over a part the length of the sides (7), so that a tab W (20) can be inserted between the diverging ends of the sides (7) and can enter the slots (8) between the base (6) and the sides of the slots (8) remote from the base (6). 2. Flax plug socket according to claim 1, characterized in that that the channel sides (7) are curved so convexly towards each other that they the base (6) overlap between the ends of the slots (8), and that parts (10) of the sides at the diverging ends come together to form an insertion section for the flat plug (20) in parallel extend towards each other. 3. Flat plug socket according to claim 1 or 2, characterized in that the slots (8) the diverging Ends of the socket adjacent enlarged (11) are to form a space between the base (6) distant side parts of the slots (8) and the base (6), this gap being at the diverging ends the socket is larger than between the ends of the slots (8). 4. Flat plug socket according to one of claims 1 to 3, characterized in that the slots (8) run laterally into the base. 009846/1 17Ί ORIGINAL BATHROOM AKP 2695 JT- 2012221 5 c flat plug socket according to one of claims 1 to 4, d a through characterized in that the slots (8) are generally in the shape of a parallelogram and that from the base (6) remote sides of the slots (8) with a small inclination towards the corresponding, the Base (6) to converge adjacent sides of the slots. 6. Flat plug socket according to one of claims 1 to 5, characterized in that the base (6) between the sides (7) in the transverse direction of the socket 'is curved upwards and aass a portion of the base (6) extending in the longitudinal direction of the socket between the sides (7) with respect to the sides (7) adjacent parts (16) of the base is raised. 7. Flat plug socket according to claim 6, characterized in that g e - k e η η ζ e i c h η e t that the raised base part (15) is in front the ends of the adjacent to the converging end of the socket Slots (8) ends in a step (17) which is inclined backwards and downwards to a rearwardly extending base part, which is integral with the sides (7) of the socket, and that the Easis (6) of the socket is adjacent to the rear ends of the Slits (8) are formed with a stiffening indentation (23) extending in the longitudinal direction and protruding downwards is. 8. Flat plug socket according to one of claims 1 to 7, characterized in that provided at the diverging ends of the socket sections (24) of the Sides (7) are formed with ears which are bent in so that they over side portions (16) of the base (6) on one another to protrude so that a flat plug (20) between the ears (24) and the base (6) for subsequent penetration into the slots (8) can be inserted. 009846/1171 BATH Blank page